Tool Changes?

[zephyr9900]

Originally Posted by Don Clement I use a Starrett TDI with a 0.200 range mounted in a TTS holder as tool #1.

Don, could you post a picture of this? I have a Starrett dial test indicator and don't see how it could be mounted to produce a repeatable result. Thanks.

Randy

[Don Clement]

http://i72.photobucket.com/albums/i1...ettToolNo1.jpg

The Starrett TDI is a Starrett n0. 25-511 mounted in a 1/2" TTS holder as shown. I run the TDI to 0.05" when zeroing and when measuring on the Tormach measuring fixture using a height gage. Repeatability is excellent. Note that AGD gages have a 4-48 threaded spindle and can accept different pads or feet. I have a ~0.3" diameter foot mounted as shown for zeroing tangent against a 1/2" diameter roll pin that I use for finding the datum on my 45 degree fixture. BTW thats not so easy with a a spherical probe tip. The 0.2 range of the Starrett 25-511 is also a good buffer for overtravel when zero is set at 0.05".

Don

[zephyr9900]

Oooh, that's a totally different thing than my Last Word. I'm used to those being called dial indicators. In the words of the immortal Emily Litella, "Never mind..."

Thank you for the picture, Don. I can see how that is great for setting height by adding the preload. 'Nuther thing for my shopping list.

Randy

[Don Clement]

http://i72.photobucket.com/albums/i1...t811Daedal.jpg

Here is a picture of my center finding tool. It’s made from a Starrett No. 811 TDI mounted on a Daedal 15mm positoner. There is a 0.75” diameter boss at the top, which fits into the 0.75” R8 collet. Since repeatable height isn’t necessary for the center finder tool, TTS toolholder wasn’t needed. I used to have a Blake-clone co-ax centering tool but it broke. I think this center tool using the 811 TDI works better and I don’t have to run the spindle; just rotate the tool by hand.

Don